﻿//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1998-2024 Glodon Company Limited.
//
// Licensed under the MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the “Software”),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////
#pragma  once
#include "QtCommonWidget.h"
#include <QWidget>

enum EnHitPosition
{
    HP_HitNone,
    HP_HitLeft,
    HP_HitRight,
    HP_HitTop,
    HP_HitBottom,
    HP_HitTopLeft,
    HP_HitBottomLeft,
    HP_HitTopRight,
    HP_HitBottomRight,
    HP_HitBorder
};

class QT_COMMON_WIDGET_EXPORT GmSizeController : public QObject
{
    Q_OBJECT

public:
    GmSizeController(QWidget* widget, QObject* parent);
    ~GmSizeController();

    bool isEnabled() const { return m_bEnabled; }
    void setEnabled(bool enabled);

    static bool isFixedSize(QWidget* widget);

    bool eventFilter(QObject* obj, QEvent* event) Q_DECL_OVERRIDE;

protected:
    void mousePressEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent* event);

    void resizeFrame();
    void changeCursor(EnHitPosition hit);

private:
    QWidget* m_pWidget;
    bool m_bEnabled;
    QPoint m_startPosition;
    EnHitPosition m_hit;
    EnHitPosition m_lastHit;
};

